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Finding the Fourth Proportional to 169,832.72, 234,609 and 136,065.44

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Solution

The fourth proportional to 169,832.72, 234,609 and 136,065.44 is: 187,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,832.72 : 234,609 = 136,065.44 : x
  2. Step 2: Convert to fraction form
    169,832.72/234,609 = 136,065.44/x
  3. Step 3: Cross multiply
    169,832.72x = 234,609 × 136,065.44
  4. Step 4: Simplify right side
    169,832.72x = 31,922,176,812.96
  5. Step 5: Solve for x
    x = 31,922,176,812.96/169,832.72
  6. Step 6: Final answer
    x = 187,962.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.